CVE-2026-84233

HIGH
MEDIUM Priority: 0.01 BB Relevance: 29/100
Published: 2026-09-01 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: High
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: High

Description

A flaw was found in rpm. A local attacker could supply a specially crafted `.gem` filename containing RPM macro syntax. When a user or automated workflow invokes `rpmuncompress -x` on this file, the macro expansion occurs during command construction. This allows the attacker to execute arbitrary commands with the privileges of the invoking account, leading to a compromise of confidentiality, integrity, and availability.

References & Advisories (3)

https://access.redhat.com/errata/RHSA-2026:66637
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2478409
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

29 / 100
✓ No authentication

CVSS Score

7.0 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.19%
Raw Score 0.001940
Percentile 9.2%
Date 2026-11-05

EPSS Trend

2026-11-05
0.00194
2026-11-04
0.00194
2026-11-03
0.00194
2026-11-02
0.00194

Intelligence Sources

mitre ref →